Lifting device.



No. 818,384 PATENTED FEB. 20, 1906.

K. KIEFER. LIPTING DEV-ICE APPLICATION FILED MAR.Z7,1905.

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liziltli KllEFER, GF (,JlNUlNNA'll, OHIO.

LSFWNG DEWCE.

Specification of Letters Patent.

Patented Feb. 20, 1906.

O iginal application filed November 21, 1904, Serial No. 233,647. Divided and this applicatioh filed March 27,1905. Serial lilo. 252,268.

.l'o (i-ZZ- 1071 0111, it may concern/.-

Be it known that I, KARL KIEFER, a citizen of the United States, and a resident of Cincinl nati, in the county of Hamilton and State of Ohio, have invented a new and useful Improvement in Lifting Devices, the operativeness of which is acquired by novel means, of which the following is a specification.

This invention has been described in my application for an improvement in a filter, Serial No. 233,647, filed November 21, 1904, and is herein claimed.

The objectof my invention is to provide.

means for the insertion and extraction of filter layers in a filter. The drums of such filters are three feet deep or more, and the insertion of the first filter elements requires the leaning of the man into the drum and makes it desirable to be able to insert the filter element with one arm. After insertion he then should release the lifting device with one hand. The operation of insertion and withdrawal of this instrument should also be done quickly and easily.

This new and improved lifting device is illustrated by the accompanying drawings, of which Figure 1 is aside view of the lilting,device,'

showing position of the lifting-hooks when held or suspended by the handle. Fig. 2 is a vertical cross-section of the liftin' device, showing same position of lifting-hoohs as Fig. 1. Fig. 3 is a vertical cross-section showing position of liftin -hooks when the device is held or suspended by the frame part. is a crosssection on lines J J, Fig. 1; and 1 ig. 5 is a cross-section on line 0 0,-Fig. 1.

The lifting device consists of four partsthe frame part B, the handle two lifting-hooks G and II.

It the handle part A is held or suspended and the frame part B, carrying the lifting hooks G and H, is allowed to drop, as shown.

. in Fig. 2, the lifting-hooks are seen to be actuated and spread automatically by the inclinedlane part K. This action takes place when t 1e device has been inserted in the lilter layers, and the handle part A is taken hold of in the act of removing said filter laycrs from lilter. If, however, the frame part B is held by me'ansoi the two rojections R and R,as shown in Fig. 1, the iandle part A drops and by means of the inclined-plane part M, as shown" in Fig.3, spreads the upper Fig. 4-

part A, and the.

i part of the lifting hooks G and H, which causes them to release their hold and be contained entirely within the frame part B, otter ing no resistance when extracting same from the filter layer. This action. takes place automatically when it is desired to have the do vice release its hold and to remove same from the filter layer. The handle part A is guided on the frame B by means of a cylindrical guide V and also between the lifting-hooks G and H. v i

The frame part B is turned of? so that it fits into the cylindrical hole of the filter layer. There is an offset Z, which prevents insertion beyond a certain limit. I This ofi'setis so regulated that the hook part of the lifting-hooks G and H is opposite projections contained within the iilter layer. The offset also comes into play if on account of dirt or any other mechanical obstacle the lit ing-hooks G and H do not return to "their 11a ml perpendicular position for the purpose of extraction. The handle part A can then be forced downward against the frame part B, that is held by means oi this offset Z against the cylindrical hole of the filter layer. 'Thetrelative position of the handle cross-bar proper and the two projections B. "and 'R of the frame part is such that while the hand of the operator'surrounds the cross-bar itinay by stretching the fingers take hold of the projections R and R without changing the position of the hand. In extracting the frame part by means of the projections R and R the palm of the hand can push the handle downward, while thefingers lift the frame part u ward. This motion brings the lifting-hoe s G and H within the frame )art B. The part K of the frame part not only spreads the lifting-hooks G and H, as shown in Fig. 2, but

also supports them atthe end. of its motion. The weight is therefore directly on the handle part, and the )ins around which the lifting- 00 s G and I swivel are released from all strain. This is important, as the. liftinghooks have to enter holes of one and oneeighth inches diameter, which size does not give mpch opportunity for strong wearing parts. j

The frame part B at its lower end is conesha ed, which facilitates insertion in the filter ay'cr. The part B is made long enough so that it pinions one filter'layer and also enters the filter layer inunediately below with "ereted by the handle its art Y and causes, therefore, the filter layer to he deposited to come exeetly 0011861)? trio to the filter layer immediately below.

What 1 elgtim as my invention, and desire to secure by Letters Patent, is- 1. 111 s, filter-leyer-lifting device, the combinetien with a frame part, of a handle pert, means to take hold of the frame art Without changing the position of the hand on the hendle. part, and e plurality of lifting-ho0ks 0p- )ert. '2. In a filter-lsyetlilting device, the combineitiou with a frame part, of a handle pert 'edepted to he telgen hold of by means of e handle proper and to spread, when moving upward, a lurelityoif lifting-hooks 3. in e lt er-leyer-lii'tirlgdevice, the scum birietion'with a Ereime art, of e plurality of lifting-heels sus ended normally vertically on pins around W ieh they loosely swing and adepted to be spread by an upward movement of the part which is taken hold of when extracting the filter la er, and released by a reverse movement of t 1e same pert. 4. I11 e filter leyerdi fting device,

the combinatiouwithefreme ert'hevin e' ro''eetion'to prevent overinsertion, of a plurality of lifting-hooks, a handle part for taking hold of and extreetingthe filter layers, and means two etteched to such handle-pert to spread and release seid'lifting-hookst In e filterley'er-li"ting device, "the combinetiori with edfrereiepert, of e-pl.urelity of l lifting-heoks, a handle pert sud ext-resting the filter layer, and meens'atleese said. liftin hooks.

6. In a filtereyer lifting device, the com I binetion with a handle part and 0, frame part, the handle pert consisting of a vertical part centrally and ion itudinelly moveble in the frame art, end e so httvin' a crossbar to be taken old of by the hand-when extracting the filter layer, of meeus to take hold of the frame part situated immediately below said bar, and a Ylurality of lifting-hooks spread by the hand e pert when moving upward reletively to the frame pert.

7. In a filter-leyer-lifting device, the cornhination of e hendle pert and e heme pert, the handle pert oonsistin of e vertieel part vcentrally and 1011 itudine lly ixiovehle in the frame art, and s so havin a cross-bar to be taken old of by the hen when extreeting the filter layer, means to take hold of the frame part in close vicinity of the crossbar of the handle part, and a, plurality of liftinghoolss spread by the handle part when movisgi upward relatively to the frame part :11 testimony whereof I have signed my name to this speeification in the presence of subscribing Witnesses.

- KARL KIEFER Witnesses:

G. W. WERDEN, 1E. 5; errrisron. 

